Am 05.02.2015 um 14:50 schrieb Микаел Бак:
Hi there,
On 02/04/2015 11:06 PM, li...@rhsoft.net wrote:
the truth is that a xx.xx.xx.xx-static-dsl.isp.tld is not a mailserver
just becaus eit contains the word "static" - in fact most of them are
ordinary office dsl lines with clients behind
True. Not nessassarily a mail server, but it could be.
it could give a clear sign that it is
In Hungary a business line from one of the largest ISPs gives PTR like
this: dslXXXXXXXX.fixip.t-online.hu
(XXXXXXXX is actualy some rendom hex number).
The ISP does not provide a way to change this PTR.
frankly SPF is no rocket science and you don't need your ISP to
configure that simple DNS record for your own domain
Many small companies here run their own mailservers on behind thos dls
lines together with their client machines.
Not a vewry good idea to block those IMO
then just *setup SPF* or make it on a DNSWL and that rules are completly
skipped or just don't run your outbound mailserver on a standard DSL
account and use a relay
